SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 XP2

2020 XP2

2020 XP2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.028 AU it takes 1.04 yr to circle the Sun.

Apollo Observations: 117
Orbital Period · P
1.04 yr
v(q)
39.3 km/s
v(Q)
21.9 km/s
Diameter · ≈
0.13 km
TJ
5.88
Eccentricity · e
0.2848

Orbit and dynamics

Between its closest point (0.736 AU) and its farthest (1.321 AU), the heliocentric distance changes by 0.585 AU over every revolution.

One full revolution takes 1.04 yr (381 days), computed from the semi-major axis of 1.028 AU.

An eccentricity of 0.285 makes the orbit moderately elongated.

The orbital plane is tilted 15.82° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 39.3 km/s at perihelion and falls to 21.9 km/s at aphelion.

Because q < 1 AU and Q > 1 AU, this orbit geometrically intersects the region of Earth's orbit.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 22.12 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.13 km.

Observation record and orbit quality

Astrometry from 117 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4318 arcseconds.

Condition code U = 1 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.

About these computed values

Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.

Orbital Parameters

Semi-Major Axis
1.028 AU
Eccentricity
0.2848
Perihelion
0.736 AU
Aphelion
1.320774 AU
Inclination
15.82°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
9.89°

Orbit diagram

The Sun sits at the focus (orange). Earth's orbit is the grey circle at 1 AU. The red dot marks the object's position at the catalog epoch.

3D orbit (interactive)

Drag to rotate; scroll or pinch to zoom. The Sun is at the focus (orange), Earth's orbit is the grey ring at 1 AU, and the red dot marks the object's current position.

Close approaches

Predicted close approaches to Earth, from NASA's Center for Near-Earth Object Studies (CNEOS).

Date (UTC)Miss distanceVelocity
2044-Dec-30 14:04 0.146267 AU
21881248 km
15.50 km/s
2046-Jan-07 07:00 0.120931 AU
18090955 km
9.64 km/s
2049-Jul-07 06:08 0.136581 AU
20432252 km
10.18 km/s
2050-Jul-28 08:10 0.167400 AU
25042680 km
15.25 km/s
2070-Jan-06 03:19 0.042158 AU
6306702 km
11.07 km/s
2073-Jun-28 22:01 0.181392 AU
27135912 km
9.74 km/s
2074-Jul-25 01:12 0.125374 AU
18755695 km
14.01 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
22.12

Orbit Quality

RMS
0.43176
Condition
1
Orbit ID
—
Data source: NASA JPL Small-Body Database · NASA CNEOS. Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.

Keep exploring

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